Sydney shooting: Gunman dead after triple-shooting, siege

The siege in Sydney's southwest concluded with three hostages released unharmed after a six-hour standoff with police on Monday.

A siege at a southwest Sydney industrial estate, which began with the fatal shooting of one man and the wounding of two others, has come to an end with three hostages released unharmed but the gunman dead.

Shortly after 7pm [NZtime], armed tactical response police stormed the building, emerging a short time after with three hostages who it's understood had been in the premises of a signage business for many hours.

The drama had begun at 12.45pm [NZ time] on Monday, with shots being fired at Inline National Signage on the corner of Heald and Stennett roads in Ingleburn.

ANNA WARR

The scene of a shooting in Sydney's southwest.

Police arrived to find one man, aged 43, dead, and two other men injured.

Detective Inspector Mark Brett, the crime manager of Macquarie Fields Local Area Command, said one of the injured men was rushed into emergency surgery at Liverpool Hospital, while the other was being treated for superficial wounds to his lower body.